Improved foundation for spring-bed bottoms



einen 'si-ea Letters Patent No. 97,306, dated November 30, 1869.

IMPROVED FOUNDATION FOR SPRING-BED BOTTOIVIS.

The Schedule referred to in these Letters vPatent: making part of the same.

To whom it may conce-rn l Be it known that I, DAVID MANUEL, of Dedham,

in thecounty of Norfolk, and State of' Massachusetts,

have invented an Improved Expanding Foundation for Spring-Bed Bottoms, of which the following is a-full, clear, and exact description, reference being had to the accompanying drawings, in which` Figure 1 represents a perspective view ofthe foundation and spring-bed bottom, embodying my invention.

Figure 2 is a detailed )lau view of the ex andino rails.

The object of my invention is to produce a springbed bottom, in which the pressure is not confined togreater bearing-suifaoe.y

Referring to thedrawings A A A A is the frame placed in the bedstead, land is provided'witli two transverse rails, C C'.

On theserails C C' are placed the 'rails B B, 85e., forming the expanding bottom, and they are connected, on their upper faces, by series ofv springs D D D .and D D D', and their under faces by the elastic braces E E E.

The springs and braces are set in an oblique position to the rails, for the purpose of securing greater elasticity. i

The outer rails are provided with .studsF F F F', which prevent those rails from closing upon the frame A A. l

On top of the rails B B B are secured the spiral springs, over which the canvas is spread out, and fastened to the tivo outside rails.

Having fully described my invention,

llat I claim as new, and desire to secure by Letters Patent, is-

The combination of rails B B B with the springs D D D D, braces E E E E, `and the spiral springs and bed-'trame A A', in the lmanner and for the purpose as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

- DAVID MANUEL.

Witnesses:

CARROLL D. ,WRIGH'L AUsTrx S. HoWAR'rH.- 

